English Reference
adjective

depleted

adj.
US /dɪˈpɫitɪd/ UK /dɪplˈiːtɪd/ de·plet·ed

  1. 01 B2 Upper Intermediate

    having a much smaller amount of something left than there was before.

    reduced in quantity or number; having had the supply of something significantly diminished.

    Simple

    After the long race, his energy was completely depleted and he needed to rest.

    In context

    The region's groundwater levels have been severely depleted by decades of intensive farming and insufficient rainfall.

  2. 02 C1 Advanced Technical Science

    describing a material that has had its most active part removed.

    referring to a substance, particularly uranium, that has a lower proportion of a specific isotope than is found in nature.

    Simple

    The military uses depleted uranium in some types of heavy ammunition.

    In context

    Environmental groups expressed concern over the long-term effects of using depleted uranium in conflict zones due to its chemical toxicity.

Crucial military munitions stocks have been depleted, and important tools used to project power globally have been redirected towards Iran.

Al Jazeera· 25 Aug 2026

Estimates suggest it could be depleted within the next 50–300 years.

Phys.org· 1 Sept 2026
This entry
Level B2 · Upper Intermediate
Frequency Frequent
Updated